Rubber erasersとは 意味・読み方・使い方

To provide a colored pencil lead suitable as a colored wooden pencil lead, a colored mechanical pencil lead, etc., which yields a sufficient color development and density of a drawn line and a powdery, smooth writing, possesses a mechanical strength (bending strength, tensile strength, impact strength, etc.), sufficient for practical use and can be easily erased with rubber erasers, and its manufacturing process.例文帳に追加

十分な発色性及び描線濃度、パウダリーで滑らかな書き味を持ちながら、実用に十分耐えうる機械的強度（曲げ強度、引張強度、衝撃強度等）を持ち、消しゴムで容易に消去できる木軸色鉛筆芯、シャープペンシル用色鉛筆芯等に公的な色鉛筆芯及びその製造方法を提供する。 - 特許庁